Mid Feldgrau vs N3 Neutral Gray

How close are they?

ΔE 10.4, fair: the same colour family, but not a straight swap. N3 Neutral Gray is a little darker, more muted than Mid Feldgrau.

Can I use N3 Neutral Gray instead of Mid Feldgrau?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). N3 Neutral Gray is a little darker, more muted than Mid Feldgrau.

Can I use Mid Feldgrau instead of N3 Neutral Gray?

The same difference applies the other way round: Mid Feldgrau is a little lighter, more saturated.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.